Photogeneration of Hydrogen from Water Using an Integrated System Based on TiO<sub>2</sub> and Platinum(II) Diimine Dithiolate Sensitizers
作者:Jie Zhang、Pingwu Du、Jacob Schneider、Paul Jarosz、Richard Eisenberg
DOI:10.1021/ja071789h
日期:2007.6.1
Two platinum(II) diimine dithiolate complexes, Pt(dcbpy)(met) (1) and Pt(dcbpy)(bdt) (2) (dcbpy = 4,4‘-dicarboxyl-2,2‘-bipyridine; met = cis-1,2-dicarbomethoxyethylene-1,2-dithiolate; bdt = 1,2-benzenedithiolate) were used as sensitizers for platinized TiO2 (TiO2/Pt), and systems composed of 1/TiO2/Pt and 2/TiO2/Pt were found to generate hydrogen from aqueous protons and a sacrificial electron donor
两种铂 (II) 二亚胺二硫醇配合物,Pt(dcbpy)(met) (1) 和 Pt(dcbpy)(bdt) (2)(dcbpy = 4,4'-二羧基-2,2'-联吡啶;met = 顺式-1,2-二碳甲氧基乙烯-1,2-二硫醇盐;bdt = 1,2-苯二硫醇盐)用作铂化 TiO2 (TiO2/Pt) 的敏化剂,由 1/TiO2/Pt 和 2/TiO2/Pt 组成的体系发现在可见光照射下,从水性质子和牺牲电子供体三乙醇胺(TEOA)中产生氢。第一个系统在辐照 95 小时后的营业额达到 84,第二个在辐照 73 小时后营业额达到 72。使用波长超过 455 nm 的光进行额外的光解表明该系统是光稳定的,没有活性损失。